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Recent content by Tblessing

  1. Tblessing

    Electric motor voltage

    I received a call from a friend that his V'S is acting up and would like me to look at it. The VSD controls one 20 hp motor. The VSD is in fault mode showing over voltage. When I check the voltage it is correct with what is supposed to be present. "480/240 3 phase. This system has 12 motors...
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